1,243 Watts to Amps

1,243 watts is 10.36 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

1,243 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
103.58A 121.86A 70.36A
24V
DC, industrial control
51.79A 60.93A 35.18A
100V
Japan residential
12.43A 14.62A 8.44A
120V
US residential
10.36A 12.19A 7.04A
208V
US commercial three-phase
5.98A 7.03A 4.06A
220V
Legacy international / parts of Asia
5.65A 6.65A 3.84A
230V
UK / EU residential
5.4A 6.36A 3.67A
240V
US residential (dryer, range, HVAC)
5.18A 6.09A 3.52A
277V
US commercial lighting
4.49A 5.28A 3.05A
400V
UK / EU commercial three-phase
3.11A 3.66A 2.11A
460V
US industrial motor (NEC 430.250 column)
2.7A 3.18A 1.84A
480V
US industrial three-phase
2.59A 3.05A 1.76A
575V
Canadian industrial three-phase
2.16A 2.54A 1.47A

Other Wattages

This calculator provides estimates for reference purposes only. Always consult a licensed electrician and verify compliance with the National Electrical Code (NEC) and local electrical codes before performing any electrical work.